HOSA Behavioral Health Study Guide Exam And Answers Rated A+ 2024.

Sensory receptors - Answer sensory nerve ending that responds to a stimulus in the internal or external environment of an organism Neuron - Answer a specialized cell transmitting nerve impulses; a nerve cell Sensory neurons - Answer a neuron conducting impulses inwards to the brain or spinal cord Motor neurons - Answer a nerve cell forming part of a pathway along which impulses pass from the brain or spinal cord to a muscle or gland Interneurons - Answer a neuron that transmits impulses between other neurons, especially as part of a reflex arc Synapse - Answer a junction between two nerve cells, consisting of a minute gap across which impulses pass by diffusion of a neurotransmitter Dendrite (receive) - Answer a short branched extension of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body. Axon (relay) - Answer the long threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells Myelin sheath - Answer a fatty white substance that surrounds the axon of some nerve cells, forming an electrically insulating layer Action potential - Answer a neural impulse; a brief electrical charge that travels down an axon. The action potential is generated by the movement of positively charged atoms in and out of channels in the axon's membrane.